Asp .net 调用带参数的存储过程

　　　　　　　 IDataParameter[] iDataDi = new SqlParameter[2];            iDataDi[0] = new SqlParameter("@AnalysisDate", showDate);            iDataDi[1] = new SqlParameter("@Process_PTR", ID);            //获取检测项所选日期的不同时间            dtDifferTime = SqlHelper.RunProceduresByParameter("pro_GetDifferenceTimeInfos", iDataDi);　　　　　　      //SqlHelper中的 RunProceduresByParameter(string storedProcName, IDataParameter[] parameters)方法：　　 /// <summary>    /// 执行带参数的存储过程，返回DataSet类型    /// </summary>    /// <param name="storedProcName"></param>    /// <param name="parameters"></param>    /// <returns></returns>    public static DataSet RunProceduresByParameter(string storedProcName, IDataParameter[] parameters)    {      using (SqlConnection connection = new SqlConnection(connectionString))      {        DataSet dataSet = new DataSet();        connection.Open();        SqlDataAdapter sqlDA = new SqlDataAdapter();        sqlDA.SelectCommand = BuildQueryCommand(connection, storedProcName, parameters);        sqlDA.Fill(dataSet);        connection.Close();        connection.Dispose();        return dataSet;      }    }　　 /// <summary>     /// 构建 SqlCommand 对象(用来返回一个结果集，而不是一个整数值)     /// </summary>     /// <param name="connection">数据库连接</param>     /// <param name="storedProcName">存储过程名</param>     /// <param name="parameters">存储过程参数</param>     /// <returns>SqlCommand</returns>     private static SqlCommand BuildQueryCommand(SqlConnection connection, string storedProcName, IDataParameter[] parameters)    {      SqlCommand command = new SqlCommand(storedProcName, connection);      command.CommandType = CommandType.StoredProcedure;      foreach (SqlParameter parameter in parameters)      {        command.Parameters.Add(parameter);      }      return command;    }

USE [RedBSys_DB]GO/****** Object: StoredProcedure [dbo].[pro_GetDifferenceTimeInfos]  script Date: 2017-03-22 16:34:13 ******/SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGO --获取检测项当天日期不同时间CREATE proc [dbo].[pro_GetDifferenceTimeInfos]  @AnalysisDate varchar(50),  @Process_PTR intAS select distinct(AnalysisDate) from Assay_BillMain where CONVERT(varchar(100),AnalysisDate, 23)=@AnalysisDate and Process_PTR=@Process_PTR  order by AnalysisDate ASCGO